Players arent going to make the same mistake again, and therefore Three Tree City, a very similar card, is already preselling for big chunks of money
However, if a Pokmon EX is knocked out, your opponent takes two Prize cards instead of one
Cards x 4
Play tight, dont miss damage, and always think one turn ahead
TL;DR: MTG card value is driven by three primary factors: mechanical utility in competitive play, historical scarcity (the Reserved List), and modern artificial rarity (serialized cards)
Im looking forward to a situation where someones playing Brago, King Eternal or Thassa, Deep-Dwelling and they pick what they want Scheming Fence to be every turn over and over